KBDB is formal:

all racing pigeons must be registered in the name of the fancier

“It is forbidden to participate in races or other KBDB activities with pigeons that are not registered at the KBDB in the name of the participating fancier.

This is stated in the (amended) Article 112 of the National Sports Regulations.

It is therefore no longer sufficient to only have the title deed.

The KBDB will punish violations by removing the pigeon from the classification and forfeiting the prize won.

For the preparation of the correct results, it is absolutely essential for the WPROL that the ring numbers are linked to the loft when the pigeon is basketted. On the module lost pigeons on the KBDB website, the fancier can easily check whether the pigeon can be raced correctly by him.

To clarify: possession of the title deed is therefore not sufficient,

the pigeon must actually be in the name of the fancier.

Boudewijn De Bosscher, chairman of the National Sports Committee is formally:

“All pigeons with which they participate in sports activities must be registered in the name of the relevant fancier.

The transfer must be made in the KBDB file before basketing. "
The relevant Article 112 of the Sports Regulations also states:

“All pigeons with rings 2019 and subsequent years that are present in the loft must be registered with the KBDB in the name of the relevant member of the KBDB.

The loft here refers to the playing loft (and therefore not, for example, the breeding aviary)